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Giannetti-Domínguez AD, Rangel-Negrín A, Coyohua-Fuentes A, Dias PAD. Leadership and the finder's advantage in mantled howler monkeys. Am J Primatol 2024; 86:e23651. [PMID: 38804875 DOI: 10.1002/ajp.23651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 04/15/2024] [Accepted: 05/11/2024] [Indexed: 05/29/2024]
Abstract
Leading collective movements and arriving first at feeding sites may improve food acquisition. Specifically, the first individual to discover and exploit a feeding site may gain a feeding advantage known as the "finder's advantage." The aim of this research was to verify if the probability of leading group movements to feeding sites in mantled howler monkeys (Alouatta palliata) varied by sex and reproductive status, and whether finders had higher foraging success than followers. We studied 18 adult individuals from two groups in La Flor de Catemaco over a year (978 h), and sampled group movements (n = 211) and foraging behavior (n = 215 feeding episodes). Gestating females were leaders and finders of group movements to feeding sites more often than expected but were also replaced in the leading position more frequently than individuals of other sex/reproductive states. Feeding behavior was not influenced by the order of arrival at feeding sites per se, but gestating females had higher food intake rate, bite rate, and feeding time when arriving earlier (i.e., occupying front group positions) than later. Therefore, leadership and the finder's advantage occur in this species and are probably employed by gestating females to maintain their energetic condition.
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Affiliation(s)
| | - Ariadna Rangel-Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, México
| | - Alejandro Coyohua-Fuentes
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, México
| | - Pedro A D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuro-etología, Universidad Veracruzana, Xalapa, México
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Planas-Sitjà I, Deneubourg JL, Cronin AL. Variation in personality can substitute for social feedback in coordinated animal movements. Commun Biol 2021; 4:469. [PMID: 33850250 PMCID: PMC8044162 DOI: 10.1038/s42003-021-01991-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 03/11/2021] [Indexed: 12/12/2022] Open
Abstract
Collective movements are essential for the effective function of animal societies, but are complicated by the need for consensus among group members. Consensus is typically assumed to arise via feedback mechanisms, but this ignores inter-individual variation in behavioural tendency ('personality'), which is known to underpin the successful function of many complex societies. In this study, we use a theoretical approach to examine the relative importance of personality and feedback in the emergence of collective movement decisions in animal groups. Our results show that variation in personality dramatically influences collective decisions and can partially or completely replace feedback depending on the directionality of relationships among individuals. The influence of personality increases with the exaggeration of differences among individuals. While it is likely that both feedback and personality interact in nature, our findings highlight the potential importance of personality in driving collective processes.
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Affiliation(s)
| | - Jean-Louis Deneubourg
- Center of Nonlinear Phenomena and Complex Systems (CENOLI) - CP 231, Université libre de Bruxelles, Bruxelles, Belgium
| | - Adam L Cronin
- Department of Biology, Tokyo Metropolitan University, Tokyo, Japan
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6
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Rangel Negrín A, Coyohua Fuentes A, de la Torre Herrera A, Cano Huertes B, Reynoso Cruz E, Ceccarelli E, Gómez Espinosa EE, Chavira Ramírez DR, Moreno Espinoza DE, Canales-Espinosa D, Maya Lastra N, Cruz Miros P, Cañadas Santiago S, Garau S, Dias PAD. Female reproductive energetics in mantled howler monkeys (Alouatta palliata): A follow-up study. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2021; 174:396-406. [PMID: 33429455 DOI: 10.1002/ajpa.24222] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 11/12/2020] [Accepted: 12/20/2020] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Reproduction entails several challenges to primate females, among which energetic costs are remarkable at certain stages of the reproductive cycle. Still, females may use behavioral and physiological strategies to cope with those challenges. We had previously reported covariation between female energetic condition through the reproductive cycle and time-budget adjustments in mantled howler monkeys (Alouatta palliata). Accordingly, we suggested that behavioral flexibility allowed coping with the energetic challenges of reproduction. Subsequent evidence from the same population, however, suggested otherwise, so we performed a follow-up study on the variation in female reproductive energetics based on a larger sample of females. METHODS We studied 48 free-ranging adult females at Los Tuxtlas (Mexico). We assessed energy balance via urinary C-peptide concentrations (2717 urine samples), behavioral energy intake and expenditure (5728 sampling hours), and physiological energy expenditure via fecal triiodothyronine metabolites (fTH3; 3138 fecal samples). RESULTS We found that energy balance varied among reproductive states: (a) cycling was a period of low C-peptide concentrations; (b) the highest C-peptide concentrations occurred during gestation; and (c) the beginning of lactation marked a notable decrease in C-peptide concentrations, which then improved at mid-lactation to again decline at lactation offset. These peaks and valleys in energy balance did not seem to be associated with variation in energy acquisition but were rather mirrored by activity levels and fTH3 during lactation. DISCUSSION Energy balance was not preserved through the reproductive cycle, supporting previous contentions that the reproductive performance of female mantled howler monkeys may be energetically constrained. The contrast between these and results that we have previously reported, highlights the importance of conducting follow-up studies to continually improve our understanding of the reproductive energetics of primate females.
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Affiliation(s)
- Ariadna Rangel Negrín
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | | | - Amalia de la Torre Herrera
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Beatriz Cano Huertes
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Eduardo Reynoso Cruz
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Enrico Ceccarelli
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Eugenia E Gómez Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - David R Chavira Ramírez
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | - Diana E Moreno Espinoza
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Domingo Canales-Espinosa
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Natalia Maya Lastra
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Pamela Cruz Miros
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Samuel Cañadas Santiago
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Sociedad Mexicana Forense del Documento y la Escritura S.C., Xalapa, Mexico.,Departamento de Didáctica de las Ciencias Experimentales, Universidad de Granada, Granada, Spain
| | - Sara Garau
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico.,Posgrado en Neuroetología, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
| | - Pedro A D Dias
- Primate Behavioral Ecology Lab, Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Mexico
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Alcocer‐Rodríguez M, Arroyo‐Rodríguez V, Galán‐Acedo C, Cristóbal‐Azkarate J, Asensio N, Rito KF, Hawes JE, Veà JJ, Dunn JC. Evaluating extinction debt in fragmented forests: the rapid recovery of a critically endangered primate. Anim Conserv 2020. [DOI: 10.1111/acv.12648] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Alcocer‐Rodríguez
- Centre Especial de Recerca en Primats Facultat de Psicologia Universitat de Barcelona Barcelona Spain
| | - V. Arroyo‐Rodríguez
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de México (UNAM) Morelia México
| | - C. Galán‐Acedo
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de México (UNAM) Morelia México
| | - J. Cristóbal‐Azkarate
- Oinarrizko Psikologia Prosezuak eta Garapena Saila Psikologiako Fakultatea Euskal Herriko Unibertsitatea Donostia Gipuzkoa Spain
| | - N. Asensio
- Gizarte‐Psikologia eta Portaera Zientzien Metodologia Psikologia Fakultatea Euskal Herriko Unibertsitatea Donostia Gipuzkoa Spain
| | - K. F. Rito
- Instituto de Investigaciones en Ecosistemas y Sustentabilidad Universidad Nacional Autónoma de México (UNAM) Morelia México
| | - J. E. Hawes
- School of Life Sciences Anglia Ruskin University Cambridge UK
- Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences 1430 Ås Norway
| | - J. J. Veà
- Centre Especial de Recerca en Primats Facultat de Psicologia Universitat de Barcelona Barcelona Spain
| | - Jacob C. Dunn
- School of Life Sciences Anglia Ruskin University Cambridge UK
- Division of Biological Anthropology University of Cambridge Cambridge UK
- Department of Cognitive Biology University of Vienna Vienna Austria
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